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Finding the Fourth Proportional to 559.92, 840.24 and 235.44

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Solution

The fourth proportional to 559.92, 840.24 and 235.44 is: 353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.92 : 840.24 = 235.44 : x
  2. Step 2: Convert to fraction form
    559.92/840.24 = 235.44/x
  3. Step 3: Cross multiply
    559.92x = 840.24 × 235.44
  4. Step 4: Simplify right side
    559.92x = 197,826.11
  5. Step 5: Solve for x
    x = 197,826.11/559.92
  6. Step 6: Final answer
    x = 353.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.